diff --git a/README.md b/README.md
index 2cf1492cc..1d963d916 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# lodash v4.14.1
+# lodash v4.14.2
 
 The [Lodash](https://lodash.com/) library exported as [Node.js](https://nodejs.org/) modules.
 
@@ -28,7 +28,7 @@ var chunk = require('lodash/chunk');
 var extend = require('lodash/fp/extend');
 ```
 
-See the [package source](https://github.com/lodash/lodash/tree/4.14.1-npm) for more details.
+See the [package source](https://github.com/lodash/lodash/tree/4.14.2-npm) for more details.
 
 **Note:**<br>
 Don’t assign values to the [special variable](http://nodejs.org/api/repl.html#repl_repl_features) `_` in the Node.js < 6 REPL.<br>
@@ -36,5 +36,5 @@ Install [n_](https://www.npmjs.com/package/n_) for a REPL that includes `lodash`
 
 ## Support
 
-Tested in Chrome 50-51, Firefox 46-47, IE 9-11, Edge 13, Safari 8-9, Node.js 0.10-6, & PhantomJS 1.9.8.<br>
+Tested in Chrome 51-52, Firefox 47-48, IE 9-11, Edge 14, Safari 8-9, Node.js 0.10-6, & PhantomJS 2.1.1.<br>
 Automated [browser](https://saucelabs.com/u/lodash) & [CI](https://travis-ci.org/lodash/lodash/) test runs are available.
diff --git a/_Reflect.js b/_Reflect.js
deleted file mode 100644
index 1de7475b8..000000000
--- a/_Reflect.js
+++ /dev/null
@@ -1,6 +0,0 @@
-var root = require('./_root');
-
-/** Built-in value references. */
-var Reflect = root.Reflect;
-
-module.exports = Reflect;
diff --git a/_arrayLikeKeys.js b/_arrayLikeKeys.js
new file mode 100644
index 000000000..6f012cfd1
--- /dev/null
+++ b/_arrayLikeKeys.js
@@ -0,0 +1,38 @@
+var baseTimes = require('./_baseTimes'),
+    isArguments = require('./isArguments'),
+    isArray = require('./isArray'),
+    isIndex = require('./_isIndex'),
+    isString = require('./isString');
+
+/** Used for built-in method references. */
+var objectProto = Object.prototype;
+
+/** Used to check objects for own properties. */
+var hasOwnProperty = objectProto.hasOwnProperty;
+
+/**
+ * Creates an array of the enumerable property names of the array-like `value`.
+ *
+ * @private
+ * @param {*} value The value to query.
+ * @param {boolean} inherited Specify returning inherited property names.
+ * @returns {Array} Returns the array of property names.
+ */
+function arrayLikeKeys(value, inherited) {
+  var result = (isArray(value) || isString(value) || isArguments(value))
+    ? baseTimes(value.length, String)
+    : [];
+
+  var length = result.length,
+      skipIndexes = !!length;
+
+  for (var key in value) {
+    if ((inherited || hasOwnProperty.call(value, key)) &&
+        !(skipIndexes && (key == 'length' || isIndex(key, length)))) {
+      result.push(key);
+    }
+  }
+  return result;
+}
+
+module.exports = arrayLikeKeys;
diff --git a/_assignValue.js b/_assignValue.js
index 35d49f04e..aa1dc78e1 100644
--- a/_assignValue.js
+++ b/_assignValue.js
@@ -8,7 +8,7 @@ var hasOwnProperty = objectProto.hasOwnProperty;
 
 /**
  * Assigns `value` to `key` of `object` if the existing value is not equivalent
- * using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
+ * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
  * for equality comparisons.
  *
  * @private
diff --git a/_baseConformsTo.js b/_baseConformsTo.js
index a72deda2d..e449cb84b 100644
--- a/_baseConformsTo.js
+++ b/_baseConformsTo.js
@@ -11,14 +11,13 @@ function baseConformsTo(object, source, props) {
   if (object == null) {
     return !length;
   }
-  var index = length;
-  while (index--) {
-    var key = props[index],
+  object = Object(object);
+  while (length--) {
+    var key = props[length],
         predicate = source[key],
         value = object[key];
 
-    if ((value === undefined &&
-        !(key in Object(object))) || !predicate(value)) {
+    if ((value === undefined && !(key in object)) || !predicate(value)) {
       return false;
     }
   }
diff --git a/_baseDelay.js b/_baseDelay.js
index 1e4e69b68..f21087747 100644
--- a/_baseDelay.js
+++ b/_baseDelay.js
@@ -9,7 +9,7 @@ var FUNC_ERROR_TEXT = 'Expected a function';
  * @param {Function} func The function to delay.
  * @param {number} wait The number of milliseconds to delay invocation.
  * @param {Array} args The arguments to provide to `func`.
- * @returns {number} Returns the timer id.
+ * @returns {number|Object} Returns the timer id or timeout object.
  */
 function baseDelay(func, wait, args) {
   if (typeof func != 'function') {
diff --git a/_baseGetTag.js b/_baseGetTag.js
index ce773623c..c8b9e394f 100644
--- a/_baseGetTag.js
+++ b/_baseGetTag.js
@@ -3,7 +3,7 @@ var objectProto = Object.prototype;
 
 /**
  * Used to resolve the
- * [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+ * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
  * of values.
  */
 var objectToString = objectProto.toString;
diff --git a/_baseHas.js b/_baseHas.js
index 3d2e7bf74..1b730321c 100644
--- a/_baseHas.js
+++ b/_baseHas.js
@@ -1,5 +1,3 @@
-var getPrototype = require('./_getPrototype');
-
 /** Used for built-in method references. */
 var objectProto = Object.prototype;
 
@@ -15,12 +13,7 @@ var hasOwnProperty = objectProto.hasOwnProperty;
  * @returns {boolean} Returns `true` if `key` exists, else `false`.
  */
 function baseHas(object, key) {
-  // Avoid a bug in IE 10-11 where objects with a [[Prototype]] of `null`,
-  // that are composed entirely of index properties, return `false` for
-  // `hasOwnProperty` checks of them.
-  return object != null &&
-    (hasOwnProperty.call(object, key) ||
-      (typeof object == 'object' && key in object && getPrototype(object) === null));
+  return object != null && hasOwnProperty.call(object, key);
 }
 
 module.exports = baseHas;
diff --git a/_baseIsArrayBuffer.js b/_baseIsArrayBuffer.js
index a380bf7b2..024ec8514 100644
--- a/_baseIsArrayBuffer.js
+++ b/_baseIsArrayBuffer.js
@@ -7,7 +7,7 @@ var objectProto = Object.prototype;
 
 /**
  * Used to resolve the
- * [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+ * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
  * of values.
  */
 var objectToString = objectProto.toString;
diff --git a/_baseIsDate.js b/_baseIsDate.js
index 01b7c72d4..9dacf9b15 100644
--- a/_baseIsDate.js
+++ b/_baseIsDate.js
@@ -8,7 +8,7 @@ var objectProto = Object.prototype;
 
 /**
  * Used to resolve the
- * [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+ * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
  * of values.
  */
 var objectToString = objectProto.toString;
diff --git a/_baseIsNative.js b/_baseIsNative.js
index 4d7dd0773..39be77479 100644
--- a/_baseIsNative.js
+++ b/_baseIsNative.js
@@ -6,7 +6,7 @@ var isFunction = require('./isFunction'),
 
 /**
  * Used to match `RegExp`
- * [syntax characters](http://ecma-international.org/ecma-262/6.0/#sec-patterns).
+ * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).
  */
 var reRegExpChar = /[\\^$.*+?()[\]{}|]/g;
 
diff --git a/_baseIsRegExp.js b/_baseIsRegExp.js
index 6d10b42de..926fbb3bd 100644
--- a/_baseIsRegExp.js
+++ b/_baseIsRegExp.js
@@ -8,7 +8,7 @@ var objectProto = Object.prototype;
 
 /**
  * Used to resolve the
- * [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+ * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
  * of values.
  */
 var objectToString = objectProto.toString;
diff --git a/_baseIsTypedArray.js b/_baseIsTypedArray.js
index 5d1e43bda..9e92756cb 100644
--- a/_baseIsTypedArray.js
+++ b/_baseIsTypedArray.js
@@ -49,7 +49,7 @@ var objectProto = Object.prototype;
 
 /**
  * Used to resolve the
- * [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+ * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
  * of values.
  */
 var objectToString = objectProto.toString;
diff --git a/_baseKeys.js b/_baseKeys.js
index 2a27d5554..45e9e6f39 100644
--- a/_baseKeys.js
+++ b/_baseKeys.js
@@ -1,16 +1,30 @@
-var overArg = require('./_overArg');
+var isPrototype = require('./_isPrototype'),
+    nativeKeys = require('./_nativeKeys');
 
-/* Built-in method references for those with the same name as other `lodash` methods. */
-var nativeKeys = Object.keys;
+/** Used for built-in method references. */
+var objectProto = Object.prototype;
+
+/** Used to check objects for own properties. */
+var hasOwnProperty = objectProto.hasOwnProperty;
 
 /**
- * The base implementation of `_.keys` which doesn't skip the constructor
- * property of prototypes or treat sparse arrays as dense.
+ * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.
  *
  * @private
  * @param {Object} object The object to query.
  * @returns {Array} Returns the array of property names.
  */
-var baseKeys = overArg(nativeKeys, Object);
+function baseKeys(object) {
+  if (!isPrototype(object)) {
+    return nativeKeys(object);
+  }
+  var result = [];
+  for (var key in Object(object)) {
+    if (hasOwnProperty.call(object, key) && key != 'constructor') {
+      result.push(key);
+    }
+  }
+  return result;
+}
 
 module.exports = baseKeys;
diff --git a/_baseKeysIn.js b/_baseKeysIn.js
index 7455fd889..ea8a0a174 100644
--- a/_baseKeysIn.js
+++ b/_baseKeysIn.js
@@ -1,36 +1,33 @@
-var Reflect = require('./_Reflect'),
-    iteratorToArray = require('./_iteratorToArray');
+var isObject = require('./isObject'),
+    isPrototype = require('./_isPrototype'),
+    nativeKeysIn = require('./_nativeKeysIn');
 
 /** Used for built-in method references. */
 var objectProto = Object.prototype;
 
-/** Built-in value references. */
-var enumerate = Reflect ? Reflect.enumerate : undefined,
-    propertyIsEnumerable = objectProto.propertyIsEnumerable;
+/** Used to check objects for own properties. */
+var hasOwnProperty = objectProto.hasOwnProperty;
 
 /**
- * The base implementation of `_.keysIn` which doesn't skip the constructor
- * property of prototypes or treat sparse arrays as dense.
+ * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.
  *
  * @private
  * @param {Object} object The object to query.
  * @returns {Array} Returns the array of property names.
  */
 function baseKeysIn(object) {
-  object = object == null ? object : Object(object);
+  if (!isObject(object)) {
+    return nativeKeysIn(object);
+  }
+  var isProto = isPrototype(object),
+      result = [];
 
-  var result = [];
   for (var key in object) {
-    result.push(key);
+    if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {
+      result.push(key);
+    }
   }
   return result;
 }
 
-// Fallback for IE < 9 with es6-shim.
-if (enumerate && !propertyIsEnumerable.call({ 'valueOf': 1 }, 'valueOf')) {
-  baseKeysIn = function(object) {
-    return iteratorToArray(enumerate(object));
-  };
-}
-
 module.exports = baseKeysIn;
diff --git a/_baseMerge.js b/_baseMerge.js
index e18d3bf75..dfb4b1527 100644
--- a/_baseMerge.js
+++ b/_baseMerge.js
@@ -1,11 +1,11 @@
 var Stack = require('./_Stack'),
     arrayEach = require('./_arrayEach'),
     assignMergeValue = require('./_assignMergeValue'),
+    baseKeysIn = require('./_baseKeysIn'),
     baseMergeDeep = require('./_baseMergeDeep'),
     isArray = require('./isArray'),
     isObject = require('./isObject'),
-    isTypedArray = require('./isTypedArray'),
-    keysIn = require('./keysIn');
+    isTypedArray = require('./isTypedArray');
 
 /**
  * The base implementation of `_.merge` without support for multiple sources.
@@ -23,7 +23,7 @@ function baseMerge(object, source, srcIndex, customizer, stack) {
     return;
   }
   if (!(isArray(source) || isTypedArray(source))) {
-    var props = keysIn(source);
+    var props = baseKeysIn(source);
   }
   arrayEach(props || source, function(srcValue, key) {
     if (props) {
diff --git a/_baseSet.js b/_baseSet.js
index 34d63e568..a758a4f48 100644
--- a/_baseSet.js
+++ b/_baseSet.js
@@ -16,6 +16,9 @@ var assignValue = require('./_assignValue'),
  * @returns {Object} Returns `object`.
  */
 function baseSet(object, path, value, customizer) {
+  if (!isObject(object)) {
+    return object;
+  }
   path = isKey(path, object) ? [path] : castPath(path);
 
   var index = -1,
@@ -24,20 +27,19 @@ function baseSet(object, path, value, customizer) {
       nested = object;
 
   while (nested != null && ++index < length) {
-    var key = toKey(path[index]);
-    if (isObject(nested)) {
-      var newValue = value;
-      if (index != lastIndex) {
-        var objValue = nested[key];
-        newValue = customizer ? customizer(objValue, key, nested) : undefined;
-        if (newValue === undefined) {
-          newValue = objValue == null
-            ? (isIndex(path[index + 1]) ? [] : {})
-            : objValue;
-        }
+    var key = toKey(path[index]),
+        newValue = value;
+
+    if (index != lastIndex) {
+      var objValue = nested[key];
+      newValue = customizer ? customizer(objValue, key, nested) : undefined;
+      if (newValue === undefined) {
+        newValue = isObject(objValue)
+          ? objValue
+          : (isIndex(path[index + 1]) ? [] : {});
       }
-      assignValue(nested, key, newValue);
     }
+    assignValue(nested, key, newValue);
     nested = nested[key];
   }
   return object;
diff --git a/_baseUnset.js b/_baseUnset.js
index 754eb063c..dda80fc19 100644
--- a/_baseUnset.js
+++ b/_baseUnset.js
@@ -1,10 +1,15 @@
-var baseHas = require('./_baseHas'),
-    castPath = require('./_castPath'),
+var castPath = require('./_castPath'),
     isKey = require('./_isKey'),
     last = require('./last'),
     parent = require('./_parent'),
     toKey = require('./_toKey');
 
+/** Used for built-in method references. */
+var objectProto = Object.prototype;
+
+/** Used to check objects for own properties. */
+var hasOwnProperty = objectProto.hasOwnProperty;
+
 /**
  * The base implementation of `_.unset`.
  *
@@ -18,7 +23,7 @@ function baseUnset(object, path) {
   object = parent(object, path);
 
   var key = toKey(last(path));
-  return !(object != null && baseHas(object, key)) || delete object[key];
+  return !(object != null && hasOwnProperty.call(object, key)) || delete object[key];
 }
 
 module.exports = baseUnset;
diff --git a/_createCtor.js b/_createCtor.js
index ee904f4ff..9047aa5fa 100644
--- a/_createCtor.js
+++ b/_createCtor.js
@@ -12,7 +12,7 @@ var baseCreate = require('./_baseCreate'),
 function createCtor(Ctor) {
   return function() {
     // Use a `switch` statement to work with class constructors. See
-    // http://ecma-international.org/ecma-262/6.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist
+    // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist
     // for more details.
     var args = arguments;
     switch (args.length) {
diff --git a/_equalByTag.js b/_equalByTag.js
index d6baa0a55..07d8c8c00 100644
--- a/_equalByTag.js
+++ b/_equalByTag.js
@@ -75,7 +75,7 @@ function equalByTag(object, other, tag, equalFunc, customizer, bitmask, stack) {
     case regexpTag:
     case stringTag:
       // Coerce regexes to strings and treat strings, primitives and objects,
-      // as equal. See http://www.ecma-international.org/ecma-262/6.0/#sec-regexp.prototype.tostring
+      // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring
       // for more details.
       return object == (other + '');
 
diff --git a/_equalObjects.js b/_equalObjects.js
index 92646ed53..092cb3ff9 100644
--- a/_equalObjects.js
+++ b/_equalObjects.js
@@ -1,9 +1,14 @@
-var baseHas = require('./_baseHas'),
-    keys = require('./keys');
+var keys = require('./keys');
 
 /** Used to compose bitmasks for comparison styles. */
 var PARTIAL_COMPARE_FLAG = 2;
 
+/** Used for built-in method references. */
+var objectProto = Object.prototype;
+
+/** Used to check objects for own properties. */
+var hasOwnProperty = objectProto.hasOwnProperty;
+
 /**
  * A specialized version of `baseIsEqualDeep` for objects with support for
  * partial deep comparisons.
@@ -31,7 +36,7 @@ function equalObjects(object, other, equalFunc, customizer, bitmask, stack) {
   var index = objLength;
   while (index--) {
     var key = objProps[index];
-    if (!(isPartial ? key in other : baseHas(other, key))) {
+    if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) {
       return false;
     }
   }
diff --git a/_getLength.js b/_getLength.js
deleted file mode 100644
index 54071653a..000000000
--- a/_getLength.js
+++ /dev/null
@@ -1,16 +0,0 @@
-var baseProperty = require('./_baseProperty');
-
-/**
- * Gets the "length" property value of `object`.
- *
- * **Note:** This function is used to avoid a
- * [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792) that affects
- * Safari on at least iOS 8.1-8.3 ARM64.
- *
- * @private
- * @param {Object} object The object to query.
- * @returns {*} Returns the "length" value.
- */
-var getLength = baseProperty('length');
-
-module.exports = getLength;
diff --git a/_getPrototype.js b/_getPrototype.js
index 572479388..e80861212 100644
--- a/_getPrototype.js
+++ b/_getPrototype.js
@@ -1,15 +1,6 @@
 var overArg = require('./_overArg');
 
-/* Built-in method references for those with the same name as other `lodash` methods. */
-var nativeGetPrototype = Object.getPrototypeOf;
-
-/**
- * Gets the `[[Prototype]]` of `value`.
- *
- * @private
- * @param {*} value The value to query.
- * @returns {null|Object} Returns the `[[Prototype]]`.
- */
-var getPrototype = overArg(nativeGetPrototype, Object);
+/** Built-in value references. */
+var getPrototype = overArg(Object.getPrototypeOf, Object);
 
 module.exports = getPrototype;
diff --git a/_getTag.js b/_getTag.js
index af186020b..02928772e 100644
--- a/_getTag.js
+++ b/_getTag.js
@@ -20,7 +20,7 @@ var objectProto = Object.prototype;
 
 /**
  * Used to resolve the
- * [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+ * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
  * of values.
  */
 var objectToString = objectProto.toString;
diff --git a/_indexKeys.js b/_indexKeys.js
deleted file mode 100644
index 0e2fc1048..000000000
--- a/_indexKeys.js
+++ /dev/null
@@ -1,24 +0,0 @@
-var baseTimes = require('./_baseTimes'),
-    isArguments = require('./isArguments'),
-    isArray = require('./isArray'),
-    isLength = require('./isLength'),
-    isString = require('./isString');
-
-/**
- * Creates an array of index keys for `object` values of arrays,
- * `arguments` objects, and strings, otherwise `null` is returned.
- *
- * @private
- * @param {Object} object The object to query.
- * @returns {Array|null} Returns index keys, else `null`.
- */
-function indexKeys(object) {
-  var length = object ? object.length : undefined;
-  if (isLength(length) &&
-      (isArray(object) || isString(object) || isArguments(object))) {
-    return baseTimes(length, String);
-  }
-  return null;
-}
-
-module.exports = indexKeys;
diff --git a/_nativeKeys.js b/_nativeKeys.js
new file mode 100644
index 000000000..479a104a1
--- /dev/null
+++ b/_nativeKeys.js
@@ -0,0 +1,6 @@
+var overArg = require('./_overArg');
+
+/* Built-in method references for those with the same name as other `lodash` methods. */
+var nativeKeys = overArg(Object.keys, Object);
+
+module.exports = nativeKeys;
diff --git a/_nativeKeysIn.js b/_nativeKeysIn.js
new file mode 100644
index 000000000..00ee50594
--- /dev/null
+++ b/_nativeKeysIn.js
@@ -0,0 +1,20 @@
+/**
+ * This function is like
+ * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
+ * except that it includes inherited enumerable properties.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the array of property names.
+ */
+function nativeKeysIn(object) {
+  var result = [];
+  if (object != null) {
+    for (var key in Object(object)) {
+      result.push(key);
+    }
+  }
+  return result;
+}
+
+module.exports = nativeKeysIn;
diff --git a/_overArg.js b/_overArg.js
index f3c170a7a..651c5c55f 100644
--- a/_overArg.js
+++ b/_overArg.js
@@ -1,5 +1,5 @@
 /**
- * Creates a function that invokes `func` with its first argument transformed.
+ * Creates a unary function that invokes `func` with its argument transformed.
  *
  * @private
  * @param {Function} func The function to wrap.
diff --git a/assignIn.js b/assignIn.js
index e77aebf18..e663473a0 100644
--- a/assignIn.js
+++ b/assignIn.js
@@ -1,19 +1,7 @@
-var assignValue = require('./_assignValue'),
-    copyObject = require('./_copyObject'),
+var copyObject = require('./_copyObject'),
     createAssigner = require('./_createAssigner'),
-    isArrayLike = require('./isArrayLike'),
-    isPrototype = require('./_isPrototype'),
     keysIn = require('./keysIn');
 
-/** Used for built-in method references. */
-var objectProto = Object.prototype;
-
-/** Built-in value references. */
-var propertyIsEnumerable = objectProto.propertyIsEnumerable;
-
-/** Detect if properties shadowing those on `Object.prototype` are non-enumerable. */
-var nonEnumShadows = !propertyIsEnumerable.call({ 'valueOf': 1 }, 'valueOf');
-
 /**
  * This method is like `_.assign` except that it iterates over own and
  * inherited source properties.
@@ -46,13 +34,7 @@ var nonEnumShadows = !propertyIsEnumerable.call({ 'valueOf': 1 }, 'valueOf');
  * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }
  */
 var assignIn = createAssigner(function(object, source) {
-  if (nonEnumShadows || isPrototype(source) || isArrayLike(source)) {
-    copyObject(source, keysIn(source), object);
-    return;
-  }
-  for (var key in source) {
-    assignValue(object, key, source[key]);
-  }
+  copyObject(source, keysIn(source), object);
 });
 
 module.exports = assignIn;
diff --git a/core.js b/core.js
index 99f6f66fc..f3b42c57e 100644
--- a/core.js
+++ b/core.js
@@ -13,7 +13,7 @@
   var undefined;
 
   /** Used as the semantic version number. */
-  var VERSION = '4.14.1';
+  var VERSION = '4.14.2';
 
   /** Used as the `TypeError` message for "Functions" methods. */
   var FUNC_ERROR_TEXT = 'Expected a function';
@@ -195,7 +195,7 @@
   }
 
   /**
-   * Creates a function that invokes `func` with its first argument transformed.
+   * Creates a unary function that invokes `func` with its argument transformed.
    *
    * @private
    * @param {Function} func The function to wrap.
@@ -222,7 +222,7 @@
 
   /**
    * Used to resolve the
-   * [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+   * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
    * of values.
    */
   var objectToString = objectProto.toString;
@@ -236,7 +236,7 @@
 
   /* Built-in method references for those with the same name as other `lodash` methods. */
   var nativeIsFinite = root.isFinite,
-      nativeKeys = Object.keys,
+      nativeKeys = overArg(Object.keys, Object),
       nativeMax = Math.max;
 
   /*------------------------------------------------------------------------*/
@@ -402,7 +402,7 @@
 
   /**
    * Assigns `value` to `key` of `object` if the existing value is not equivalent
-   * using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
+   * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
    * for equality comparisons.
    *
    * @private
@@ -438,7 +438,7 @@
    * @param {Function} func The function to delay.
    * @param {number} wait The number of milliseconds to delay invocation.
    * @param {Array} args The arguments to provide to `func`.
-   * @returns {number} Returns the timer id.
+   * @returns {number|Object} Returns the timer id or timeout object.
    */
   function baseDelay(func, wait, args) {
     if (typeof func != 'function') {
@@ -746,34 +746,6 @@
     return (typeof func == 'object' ? baseMatches : baseProperty)(func);
   }
 
-  /**
-   * The base implementation of `_.keys` which doesn't skip the constructor
-   * property of prototypes or treat sparse arrays as dense.
-   *
-   * @private
-   * @param {Object} object The object to query.
-   * @returns {Array} Returns the array of property names.
-   */
-  var baseKeys = overArg(nativeKeys, Object);
-
-  /**
-   * The base implementation of `_.keysIn` which doesn't skip the constructor
-   * property of prototypes or treat sparse arrays as dense.
-   *
-   * @private
-   * @param {Object} object The object to query.
-   * @returns {Array} Returns the array of property names.
-   */
-  function baseKeysIn(object) {
-    object = object == null ? object : Object(object);
-
-    var result = [];
-    for (var key in object) {
-      result.push(key);
-    }
-    return result;
-  }
-
   /**
    * The base implementation of `_.lt` which doesn't coerce arguments.
    *
@@ -813,7 +785,7 @@
    * @returns {Function} Returns the new spec function.
    */
   function baseMatches(source) {
-    var props = keys(source);
+    var props = nativeKeys(source);
     return function(object) {
       var length = props.length;
       if (object == null) {
@@ -1116,7 +1088,7 @@
   function createCtor(Ctor) {
     return function() {
       // Use a `switch` statement to work with class constructors. See
-      // http://ecma-international.org/ecma-262/6.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist
+      // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist
       // for more details.
       var args = arguments;
       var thisBinding = baseCreate(Ctor.prototype),
@@ -1281,7 +1253,7 @@
       case regexpTag:
       case stringTag:
         // Coerce regexes to strings and treat strings, primitives and objects,
-        // as equal. See http://www.ecma-international.org/ecma-262/6.0/#sec-regexp.prototype.tostring
+        // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring
         // for more details.
         return object == (other + '');
 
@@ -1354,19 +1326,6 @@
     return result;
   }
 
-  /**
-   * Gets the "length" property value of `object`.
-   *
-   * **Note:** This function is used to avoid a
-   * [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792) that affects
-   * Safari on at least iOS 8.1-8.3 ARM64.
-   *
-   * @private
-   * @param {Object} object The object to query.
-   * @returns {*} Returns the "length" value.
-   */
-  var getLength = baseProperty('length');
-
   /**
    * Checks if `value` is a flattenable `arguments` object or array.
    *
@@ -1378,6 +1337,25 @@
     return isArray(value) || isArguments(value);
   }
 
+  /**
+   * This function is like
+   * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
+   * except that it includes inherited enumerable properties.
+   *
+   * @private
+   * @param {Object} object The object to query.
+   * @returns {Array} Returns the array of property names.
+   */
+  function nativeKeysIn(object) {
+    var result = [];
+    if (object != null) {
+      for (var key in Object(object)) {
+        result.push(key);
+      }
+    }
+    return result;
+  }
+
   /**
    * Converts `value` to a string key if it's not a string or symbol.
    *
@@ -1554,7 +1532,7 @@
 
   /**
    * Gets the index at which the first occurrence of `value` is found in `array`
-   * using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
+   * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
    * for equality comparisons. If `fromIndex` is negative, it's used as the
    * offset from the end of `array`.
    *
@@ -1784,6 +1762,11 @@
    * Iteration is stopped once `predicate` returns falsey. The predicate is
    * invoked with three arguments: (value, index|key, collection).
    *
+   * **Note:** This method returns `true` for
+   * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because
+   * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of
+   * elements of empty collections.
+   *
    * @static
    * @memberOf _
    * @since 0.1.0
@@ -2048,7 +2031,7 @@
     if (collection == null) {
       return 0;
     }
-    collection = isArrayLike(collection) ? collection : keys(collection);
+    collection = isArrayLike(collection) ? collection : nativeKeys(collection);
     return collection.length;
   }
 
@@ -2342,12 +2325,12 @@
     if (!isObject(value)) {
       return value;
     }
-    return isArray(value) ? copyArray(value) : copyObject(value, keys(value));
+    return isArray(value) ? copyArray(value) : copyObject(value, nativeKeys(value));
   }
 
   /**
    * Performs a
-   * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
+   * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
    * comparison between two values to determine if they are equivalent.
    *
    * @static
@@ -2456,7 +2439,7 @@
    * // => false
    */
   function isArrayLike(value) {
-    return value != null && isLength(getLength(value)) && !isFunction(value);
+    return value != null && isLength(value.length) && !isFunction(value);
   }
 
   /**
@@ -2568,7 +2551,7 @@
           isFunction(value.splice) || isArguments(value))) {
       return !value.length;
     }
-    return !keys(value).length;
+    return !nativeKeys(value).length;
   }
 
   /**
@@ -2587,8 +2570,7 @@
    * @category Lang
    * @param {*} value The value to compare.
    * @param {*} other The other value to compare.
-   * @returns {boolean} Returns `true` if the values are equivalent,
-   *  else `false`.
+   * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
    * @example
    *
    * var object = { 'a': 1 };
@@ -2615,8 +2597,7 @@
    * @since 0.1.0
    * @category Lang
    * @param {*} value The value to check.
-   * @returns {boolean} Returns `true` if `value` is a finite number,
-   *  else `false`.
+   * @returns {boolean} Returns `true` if `value` is a finite number, else `false`.
    * @example
    *
    * _.isFinite(3);
@@ -2663,16 +2644,15 @@
   /**
    * Checks if `value` is a valid array-like length.
    *
-   * **Note:** This function is loosely based on
-   * [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
+   * **Note:** This method is loosely based on
+   * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
    *
    * @static
    * @memberOf _
    * @since 4.0.0
    * @category Lang
    * @param {*} value The value to check.
-   * @returns {boolean} Returns `true` if `value` is a valid length,
-   *  else `false`.
+   * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
    * @example
    *
    * _.isLength(3);
@@ -2694,7 +2674,7 @@
 
   /**
    * Checks if `value` is the
-   * [language type](http://www.ecma-international.org/ecma-262/6.0/#sec-ecmascript-language-types)
+   * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
    * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
    *
    * @static
@@ -2933,7 +2913,7 @@
    * Converts `value` to an integer.
    *
    * **Note:** This method is loosely based on
-   * [`ToInteger`](http://www.ecma-international.org/ecma-262/6.0/#sec-tointeger).
+   * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger).
    *
    * @static
    * @memberOf _
@@ -3045,7 +3025,7 @@
    * // => { 'a': 1, 'c': 3 }
    */
   var assign = createAssigner(function(object, source) {
-    copyObject(source, keys(source), object);
+    copyObject(source, nativeKeys(source), object);
   });
 
   /**
@@ -3080,7 +3060,7 @@
    * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }
    */
   var assignIn = createAssigner(function(object, source) {
-    copyObject(source, keysIn(source), object);
+    copyObject(source, nativeKeysIn(source), object);
   });
 
   /**
@@ -3216,7 +3196,7 @@
    * Creates an array of the own enumerable property names of `object`.
    *
    * **Note:** Non-object values are coerced to objects. See the
-   * [ES spec](http://ecma-international.org/ecma-262/6.0/#sec-object.keys)
+   * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
    * for more details.
    *
    * @static
@@ -3240,7 +3220,7 @@
    * _.keys('hi');
    * // => ['0', '1']
    */
-  var keys = baseKeys;
+  var keys = nativeKeys;
 
   /**
    * Creates an array of the own and inherited enumerable property names of `object`.
@@ -3265,7 +3245,7 @@
    * _.keysIn(new Foo);
    * // => ['a', 'b', 'c'] (iteration order is not guaranteed)
    */
-  var keysIn = baseKeysIn;
+  var keysIn = nativeKeysIn;
 
   /**
    * Creates an object composed of the picked `object` properties.
@@ -3469,8 +3449,12 @@
    * object and `source`, returning `true` if the given object has equivalent
    * property values, else `false`.
    *
-   * **Note:** The created function supports comparing the same values as
-   * `_.isEqual` is equivalent to `_.isMatch` with `source` partially applied.
+   * **Note:** The created function is equivalent to `_.isMatch` with `source`
+   * partially applied.
+   *
+   * Partial comparisons will match empty array and empty object `source`
+   * values against any array or object value, respectively. See `_.isEqual`
+   * for a list of supported value comparisons.
    *
    * @static
    * @memberOf _
diff --git a/core.min.js b/core.min.js
index 3336ee8d3..39b38ecc4 100644
--- a/core.min.js
+++ b/core.min.js
@@ -3,26 +3,26 @@
  * lodash (Custom Build) /license | Underscore.js 1.8.3 underscorejs.org/LICENSE
  * Build: `lodash core -o ./dist/lodash.core.js`
  */
-;(function(){function n(n){n=null==n?n:Object(n);var t,r=[];for(t in n)r.push(t);return r}function t(n,t){return n.push.apply(n,t),n}function r(n){return function(t){return null==t?Z:t[n]}}function e(n,t,r,e,u){return u(n,function(n,u,o){r=e?(e=false,n):t(r,n,u,o)}),r}function u(n,t){return m(t,function(t){return n[t]})}function o(n){return n instanceof i?n:new i(n)}function i(n,t){this.__wrapped__=n,this.__actions__=[],this.__chain__=!!t}function c(n,t,r,e){return n===Z||J(n,an[r])&&!ln.call(e,r)?t:n;
-}function f(n){return V(n)?vn(n):{}}function a(n,t,r){if(typeof n!="function")throw new TypeError("Expected a function");return setTimeout(function(){n.apply(Z,r)},t)}function l(n,t){var r=true;return jn(n,function(n,e,u){return r=!!t(n,e,u)}),r}function p(n,t,r){for(var e=-1,u=n.length;++e<u;){var o=n[e],i=t(o);if(null!=i&&(c===Z?i===i:r(i,c)))var c=i,f=o}return f}function s(n,t){var r=[];return jn(n,function(n,e,u){t(n,e,u)&&r.push(n)}),r}function h(n,r,e,u,o){var i=-1,c=n.length;for(e||(e=I),o||(o=[]);++i<c;){
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+},u.isString=L,u.isUndefined=function(n){return n===Z},u.last=function(n){var t=n?n.length:0;return t?n[t-1]:Z},u.max=function(n){return n&&n.length?l(n,X,b):Z},u.min=function(n){return n&&n.length?l(n,X,j):Z},u.noConflict=function(){return un._===this&&(un._=hn),this},u.noop=function(){},u.reduce=C,u.result=function(n,t,r){return t=null==n?Z:n[t],t===Z&&(t=r),U(t)?t.call(n):t},u.size=function(n){return null==n?0:(n=P(n)?n:gn(n),n.length)},u.some=function(n,t,r){return t=r?Z:t,w(n,_(t))},u.uniqueId=function(n){
+var t=++pn;return Q(n)+t},u.each=z,u.first=q,Y(u,function(){var n={};return h(u,function(t,r){ln.call(u.prototype,r)||(n[r]=t)}),n}(),{chain:false}),u.VERSION="4.14.2",jn("pop join replace reverse split push shift sort splice unshift".split(" "),function(n){var t=(/^(?:replace|split)$/.test(n)?String.prototype:fn)[n],r=/^(?:push|sort|unshift)$/.test(n)?"tap":"thru",e=/^(?:pop|join|replace|shift)$/.test(n);u.prototype[n]=function(){var n=arguments;if(e&&!this.__chain__){var u=this.value();return t.apply(wn(u)?u:[],n);
+}return this[r](function(r){return t.apply(wn(r)?r:[],n)})}}),u.prototype.toJSON=u.prototype.valueOf=u.prototype.value=function(){return k(this.__wrapped__,this.__actions__)},typeof define=="function"&&typeof define.amd=="object"&&define.amd?(un._=u, define(function(){return u})):on?((on.exports=u)._=u,en._=u):un._=u}).call(this);
\ No newline at end of file
diff --git a/difference.js b/difference.js
index 8c4af3dca..c18e05785 100644
--- a/difference.js
+++ b/difference.js
@@ -5,7 +5,7 @@ var baseDifference = require('./_baseDifference'),
 
 /**
  * Creates an array of `array` values not included in the other given arrays
- * using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
+ * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
  * for equality comparisons. The order of result values is determined by the
  * order they occur in the first array.
  *
diff --git a/eq.js b/eq.js
index b821483fa..a94068805 100644
--- a/eq.js
+++ b/eq.js
@@ -1,6 +1,6 @@
 /**
  * Performs a
- * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
+ * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
  * comparison between two values to determine if they are equivalent.
  *
  * @static
diff --git a/escapeRegExp.js b/escapeRegExp.js
index fe5196046..0a58c69fc 100644
--- a/escapeRegExp.js
+++ b/escapeRegExp.js
@@ -2,7 +2,7 @@ var toString = require('./toString');
 
 /**
  * Used to match `RegExp`
- * [syntax characters](http://ecma-international.org/ecma-262/6.0/#sec-patterns).
+ * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).
  */
 var reRegExpChar = /[\\^$.*+?()[\]{}|]/g,
     reHasRegExpChar = RegExp(reRegExpChar.source);
diff --git a/every.js b/every.js
index 96495bdeb..114f40f1a 100644
--- a/every.js
+++ b/every.js
@@ -9,6 +9,11 @@ var arrayEvery = require('./_arrayEvery'),
  * Iteration is stopped once `predicate` returns falsey. The predicate is
  * invoked with three arguments: (value, index|key, collection).
  *
+ * **Note:** This method returns `true` for
+ * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because
+ * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of
+ * elements of empty collections.
+ *
  * @static
  * @memberOf _
  * @since 0.1.0
diff --git a/fp/_baseConvert.js b/fp/_baseConvert.js
index d294820d8..0def5f67c 100644
--- a/fp/_baseConvert.js
+++ b/fp/_baseConvert.js
@@ -143,6 +143,7 @@ function baseConvert(util, name, func, options) {
     'keys': util.keys,
     'rearg': util.rearg,
     'spread': util.spread,
+    'toInteger': util.toInteger,
     'toPath': util.toPath
   };
 
@@ -156,6 +157,7 @@ function baseConvert(util, name, func, options) {
       keys = helpers.keys,
       rearg = helpers.rearg,
       spread = helpers.spread,
+      toInteger = helpers.toInteger,
       toPath = helpers.toPath;
 
   var aryMethodKeys = keys(mapping.aryMethod);
@@ -209,10 +211,16 @@ function baseConvert(util, name, func, options) {
         return func;
       };
     },
+    'nthArg': function(nthArg) {
+      return function(n) {
+        var arity = n < 0 ? 1 : (toInteger(n) + 1);
+        return curry(nthArg(n), arity);
+      };
+    },
     'rearg': function(rearg) {
       return function(func, indexes) {
-        var n = indexes ? indexes.length : 0;
-        return curry(rearg(func, indexes), n);
+        var arity = indexes ? indexes.length : 0;
+        return curry(rearg(func, indexes), arity);
       };
     },
     'runInContext': function(runInContext) {
diff --git a/fp/_mapping.js b/fp/_mapping.js
index cb36eedad..dd4abcb55 100644
--- a/fp/_mapping.js
+++ b/fp/_mapping.js
@@ -73,10 +73,10 @@ exports.aryMethod = {
   '1': [
     'assignAll', 'assignInAll', 'attempt', 'castArray', 'ceil', 'create',
     'curry', 'curryRight', 'defaultsAll', 'defaultsDeepAll', 'floor', 'flow',
-    'flowRight', 'fromPairs', 'invert', 'iteratee', 'memoize', 'method',
-    'mergeAll', 'methodOf', 'mixin', 'over', 'overEvery', 'overSome', 'rest',
-    'reverse', 'round', 'runInContext', 'spread', 'template', 'trim', 'trimEnd',
-    'trimStart', 'uniqueId', 'words', 'zipAll'
+    'flowRight', 'fromPairs', 'invert', 'iteratee', 'memoize', 'method', 'mergeAll',
+    'methodOf', 'mixin', 'nthArg', 'over', 'overEvery', 'overSome','rest', 'reverse',
+    'round', 'runInContext', 'spread', 'template', 'trim', 'trimEnd', 'trimStart',
+    'uniqueId', 'words', 'zipAll'
   ],
   '2': [
     'add', 'after', 'ary', 'assign', 'assignAllWith', 'assignIn', 'assignInAllWith',
diff --git a/fp/_util.js b/fp/_util.js
index d450396fc..f8148129e 100644
--- a/fp/_util.js
+++ b/fp/_util.js
@@ -10,5 +10,6 @@ module.exports = {
   'keys': require('../_baseKeys'),
   'rearg': require('../rearg'),
   'spread': require('../spread'),
+  'toInteger': require('../toInteger'),
   'toPath': require('../toPath')
 };
diff --git a/fp/nthArg.js b/fp/nthArg.js
index 8ccd8e60b..fce316594 100644
--- a/fp/nthArg.js
+++ b/fp/nthArg.js
@@ -1,5 +1,5 @@
 var convert = require('./convert'),
-    func = convert('nthArg', require('../nthArg'), require('./_falseOptions'));
+    func = convert('nthArg', require('../nthArg'));
 
 func.placeholder = require('./placeholder');
 module.exports = func;
diff --git a/includes.js b/includes.js
index 8c3c51376..f6c595acb 100644
--- a/includes.js
+++ b/includes.js
@@ -10,7 +10,7 @@ var nativeMax = Math.max;
 /**
  * Checks if `value` is in `collection`. If `collection` is a string, it's
  * checked for a substring of `value`, otherwise
- * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
+ * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
  * is used for equality comparisons. If `fromIndex` is negative, it's used as
  * the offset from the end of `collection`.
  *
diff --git a/indexOf.js b/indexOf.js
index 657e4b5eb..495466ec7 100644
--- a/indexOf.js
+++ b/indexOf.js
@@ -6,7 +6,7 @@ var nativeMax = Math.max;
 
 /**
  * Gets the index at which the first occurrence of `value` is found in `array`
- * using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
+ * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
  * for equality comparisons. If `fromIndex` is negative, it's used as the
  * offset from the end of `array`.
  *
diff --git a/initial.js b/initial.js
index f4441b547..63e0c93ec 100644
--- a/initial.js
+++ b/initial.js
@@ -1,4 +1,4 @@
-var dropRight = require('./dropRight');
+var baseSlice = require('./_baseSlice');
 
 /**
  * Gets all but the last element of `array`.
@@ -15,7 +15,8 @@ var dropRight = require('./dropRight');
  * // => [1, 2]
  */
 function initial(array) {
-  return dropRight(array, 1);
+  var length = array ? array.length : 0;
+  return length ? baseSlice(array, 0, -1) : [];
 }
 
 module.exports = initial;
diff --git a/intersection.js b/intersection.js
index 20c0a4084..b56d4dd32 100644
--- a/intersection.js
+++ b/intersection.js
@@ -5,7 +5,7 @@ var arrayMap = require('./_arrayMap'),
 
 /**
  * Creates an array of unique values that are included in all given arrays
- * using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
+ * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
  * for equality comparisons. The order of result values is determined by the
  * order they occur in the first array.
  *
diff --git a/isArguments.js b/isArguments.js
index a96e244ba..4ffe05c71 100644
--- a/isArguments.js
+++ b/isArguments.js
@@ -11,7 +11,7 @@ var hasOwnProperty = objectProto.hasOwnProperty;
 
 /**
  * Used to resolve the
- * [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+ * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
  * of values.
  */
 var objectToString = objectProto.toString;
diff --git a/isArrayLike.js b/isArrayLike.js
index 189a611f0..0f9668056 100644
--- a/isArrayLike.js
+++ b/isArrayLike.js
@@ -1,5 +1,4 @@
-var getLength = require('./_getLength'),
-    isFunction = require('./isFunction'),
+var isFunction = require('./isFunction'),
     isLength = require('./isLength');
 
 /**
@@ -28,7 +27,7 @@ var getLength = require('./_getLength'),
  * // => false
  */
 function isArrayLike(value) {
-  return value != null && isLength(getLength(value)) && !isFunction(value);
+  return value != null && isLength(value.length) && !isFunction(value);
 }
 
 module.exports = isArrayLike;
diff --git a/isBoolean.js b/isBoolean.js
index b9083211c..45cbdc1ce 100644
--- a/isBoolean.js
+++ b/isBoolean.js
@@ -8,7 +8,7 @@ var objectProto = Object.prototype;
 
 /**
  * Used to resolve the
- * [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+ * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
  * of values.
  */
 var objectToString = objectProto.toString;
diff --git a/isElement.js b/isElement.js
index 67aca5dc7..62cdb062e 100644
--- a/isElement.js
+++ b/isElement.js
@@ -9,8 +9,7 @@ var isObjectLike = require('./isObjectLike'),
  * @since 0.1.0
  * @category Lang
  * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a DOM element,
- *  else `false`.
+ * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.
  * @example
  *
  * _.isElement(document.body);
diff --git a/isEmpty.js b/isEmpty.js
index 9d4649690..40c5ba488 100644
--- a/isEmpty.js
+++ b/isEmpty.js
@@ -5,8 +5,9 @@ var getTag = require('./_getTag'),
     isBuffer = require('./isBuffer'),
     isFunction = require('./isFunction'),
     isObjectLike = require('./isObjectLike'),
+    isPrototype = require('./_isPrototype'),
     isString = require('./isString'),
-    keys = require('./keys');
+    nativeKeys = require('./_nativeKeys');
 
 /** `Object#toString` result references. */
 var mapTag = '[object Map]',
@@ -69,12 +70,14 @@ function isEmpty(value) {
       return !value.size;
     }
   }
+  var isProto = isPrototype(value);
   for (var key in value) {
-    if (hasOwnProperty.call(value, key)) {
+    if (hasOwnProperty.call(value, key) &&
+        !(isProto && key == 'constructor')) {
       return false;
     }
   }
-  return !(nonEnumShadows && keys(value).length);
+  return !(nonEnumShadows && nativeKeys(value).length);
 }
 
 module.exports = isEmpty;
diff --git a/isEqual.js b/isEqual.js
index bd694dcf2..8a5412621 100644
--- a/isEqual.js
+++ b/isEqual.js
@@ -16,8 +16,7 @@ var baseIsEqual = require('./_baseIsEqual');
  * @category Lang
  * @param {*} value The value to compare.
  * @param {*} other The other value to compare.
- * @returns {boolean} Returns `true` if the values are equivalent,
- *  else `false`.
+ * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
  * @example
  *
  * var object = { 'a': 1 };
diff --git a/isEqualWith.js b/isEqualWith.js
index a442b248f..fb83d5010 100644
--- a/isEqualWith.js
+++ b/isEqualWith.js
@@ -13,8 +13,7 @@ var baseIsEqual = require('./_baseIsEqual');
  * @param {*} value The value to compare.
  * @param {*} other The other value to compare.
  * @param {Function} [customizer] The function to customize comparisons.
- * @returns {boolean} Returns `true` if the values are equivalent,
- *  else `false`.
+ * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
  * @example
  *
  * function isGreeting(value) {
diff --git a/isError.js b/isError.js
index b4a93aebe..85884b520 100644
--- a/isError.js
+++ b/isError.js
@@ -8,7 +8,7 @@ var objectProto = Object.prototype;
 
 /**
  * Used to resolve the
- * [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+ * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
  * of values.
  */
 var objectToString = objectProto.toString;
@@ -22,8 +22,7 @@ var objectToString = objectProto.toString;
  * @since 3.0.0
  * @category Lang
  * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an error object,
- *  else `false`.
+ * @returns {boolean} Returns `true` if `value` is an error object, else `false`.
  * @example
  *
  * _.isError(new Error);
diff --git a/isFinite.js b/isFinite.js
index 66af20699..601842bc4 100644
--- a/isFinite.js
+++ b/isFinite.js
@@ -14,8 +14,7 @@ var nativeIsFinite = root.isFinite;
  * @since 0.1.0
  * @category Lang
  * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a finite number,
- *  else `false`.
+ * @returns {boolean} Returns `true` if `value` is a finite number, else `false`.
  * @example
  *
  * _.isFinite(3);
diff --git a/isFunction.js b/isFunction.js
index 115f4667f..7c0882b23 100644
--- a/isFunction.js
+++ b/isFunction.js
@@ -9,7 +9,7 @@ var objectProto = Object.prototype;
 
 /**
  * Used to resolve the
- * [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+ * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
  * of values.
  */
 var objectToString = objectProto.toString;
diff --git a/isLength.js b/isLength.js
index cd9b25721..3a95caa96 100644
--- a/isLength.js
+++ b/isLength.js
@@ -4,16 +4,15 @@ var MAX_SAFE_INTEGER = 9007199254740991;
 /**
  * Checks if `value` is a valid array-like length.
  *
- * **Note:** This function is loosely based on
- * [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
+ * **Note:** This method is loosely based on
+ * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
  *
  * @static
  * @memberOf _
  * @since 4.0.0
  * @category Lang
  * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a valid length,
- *  else `false`.
+ * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
  * @example
  *
  * _.isLength(3);
diff --git a/isMatch.js b/isMatch.js
index 32fc5fb50..9773a18cd 100644
--- a/isMatch.js
+++ b/isMatch.js
@@ -5,8 +5,12 @@ var baseIsMatch = require('./_baseIsMatch'),
  * Performs a partial deep comparison between `object` and `source` to
  * determine if `object` contains equivalent property values.
  *
- * **Note:** This method supports comparing the same values as `_.isEqual`
- * and is equivalent to `_.matches` when `source` is partially applied.
+ * **Note:** This method is equivalent to `_.matches` when `source` is
+ * partially applied.
+ *
+ * Partial comparisons will match empty array and empty object `source`
+ * values against any array or object value, respectively. See `_.isEqual`
+ * for a list of supported value comparisons.
  *
  * @static
  * @memberOf _
diff --git a/isNumber.js b/isNumber.js
index aa6148836..b8662920e 100644
--- a/isNumber.js
+++ b/isNumber.js
@@ -8,7 +8,7 @@ var objectProto = Object.prototype;
 
 /**
  * Used to resolve the
- * [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+ * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
  * of values.
  */
 var objectToString = objectProto.toString;
diff --git a/isObject.js b/isObject.js
index d16542f8b..4f96dd0a2 100644
--- a/isObject.js
+++ b/isObject.js
@@ -1,6 +1,6 @@
 /**
  * Checks if `value` is the
- * [language type](http://www.ecma-international.org/ecma-262/6.0/#sec-ecmascript-language-types)
+ * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
  * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
  *
  * @static
diff --git a/isPlainObject.js b/isPlainObject.js
index 13a90e7d0..fb48e44b3 100644
--- a/isPlainObject.js
+++ b/isPlainObject.js
@@ -19,7 +19,7 @@ var objectCtorString = funcToString.call(Object);
 
 /**
  * Used to resolve the
- * [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+ * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
  * of values.
  */
 var objectToString = objectProto.toString;
@@ -33,8 +33,7 @@ var objectToString = objectProto.toString;
  * @since 0.8.0
  * @category Lang
  * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a plain object,
- *  else `false`.
+ * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
  * @example
  *
  * function Foo() {
diff --git a/isSafeInteger.js b/isSafeInteger.js
index a780afb6b..2a48526e1 100644
--- a/isSafeInteger.js
+++ b/isSafeInteger.js
@@ -15,8 +15,7 @@ var MAX_SAFE_INTEGER = 9007199254740991;
  * @since 4.0.0
  * @category Lang
  * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a safe integer,
- *  else `false`.
+ * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`.
  * @example
  *
  * _.isSafeInteger(3);
diff --git a/isString.js b/isString.js
index b9d4f24fe..7b8be86ce 100644
--- a/isString.js
+++ b/isString.js
@@ -9,7 +9,7 @@ var objectProto = Object.prototype;
 
 /**
  * Used to resolve the
- * [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+ * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
  * of values.
  */
 var objectToString = objectProto.toString;
diff --git a/isSymbol.js b/isSymbol.js
index 060d97f17..aef51150f 100644
--- a/isSymbol.js
+++ b/isSymbol.js
@@ -8,7 +8,7 @@ var objectProto = Object.prototype;
 
 /**
  * Used to resolve the
- * [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+ * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
  * of values.
  */
 var objectToString = objectProto.toString;
diff --git a/isWeakSet.js b/isWeakSet.js
index a018f53c0..290164b4b 100644
--- a/isWeakSet.js
+++ b/isWeakSet.js
@@ -8,7 +8,7 @@ var objectProto = Object.prototype;
 
 /**
  * Used to resolve the
- * [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+ * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
  * of values.
  */
 var objectToString = objectProto.toString;
diff --git a/keys.js b/keys.js
index 186a4fedd..d143c7186 100644
--- a/keys.js
+++ b/keys.js
@@ -1,15 +1,12 @@
-var baseHas = require('./_baseHas'),
+var arrayLikeKeys = require('./_arrayLikeKeys'),
     baseKeys = require('./_baseKeys'),
-    indexKeys = require('./_indexKeys'),
-    isArrayLike = require('./isArrayLike'),
-    isIndex = require('./_isIndex'),
-    isPrototype = require('./_isPrototype');
+    isArrayLike = require('./isArrayLike');
 
 /**
  * Creates an array of the own enumerable property names of `object`.
  *
  * **Note:** Non-object values are coerced to objects. See the
- * [ES spec](http://ecma-international.org/ecma-262/6.0/#sec-object.keys)
+ * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
  * for more details.
  *
  * @static
@@ -34,23 +31,7 @@ var baseHas = require('./_baseHas'),
  * // => ['0', '1']
  */
 function keys(object) {
-  var isProto = isPrototype(object);
-  if (!(isProto || isArrayLike(object))) {
-    return baseKeys(object);
-  }
-  var indexes = indexKeys(object),
-      skipIndexes = !!indexes,
-      result = indexes || [],
-      length = result.length;
-
-  for (var key in object) {
-    if (baseHas(object, key) &&
-        !(skipIndexes && (key == 'length' || isIndex(key, length))) &&
-        !(isProto && key == 'constructor')) {
-      result.push(key);
-    }
-  }
-  return result;
+  return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);
 }
 
 module.exports = keys;
diff --git a/keysIn.js b/keysIn.js
index d2fb91cb3..a62308f2c 100644
--- a/keysIn.js
+++ b/keysIn.js
@@ -1,13 +1,6 @@
-var baseKeysIn = require('./_baseKeysIn'),
-    indexKeys = require('./_indexKeys'),
-    isIndex = require('./_isIndex'),
-    isPrototype = require('./_isPrototype');
-
-/** Used for built-in method references. */
-var objectProto = Object.prototype;
-
-/** Used to check objects for own properties. */
-var hasOwnProperty = objectProto.hasOwnProperty;
+var arrayLikeKeys = require('./_arrayLikeKeys'),
+    baseKeysIn = require('./_baseKeysIn'),
+    isArrayLike = require('./isArrayLike');
 
 /**
  * Creates an array of the own and inherited enumerable property names of `object`.
@@ -33,23 +26,7 @@ var hasOwnProperty = objectProto.hasOwnProperty;
  * // => ['a', 'b', 'c'] (iteration order is not guaranteed)
  */
 function keysIn(object) {
-  var index = -1,
-      isProto = isPrototype(object),
-      props = baseKeysIn(object),
-      propsLength = props.length,
-      indexes = indexKeys(object),
-      skipIndexes = !!indexes,
-      result = indexes || [],
-      length = result.length;
-
-  while (++index < propsLength) {
-    var key = props[index];
-    if (!(skipIndexes && (key == 'length' || isIndex(key, length))) &&
-        !(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {
-      result.push(key);
-    }
-  }
-  return result;
+  return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);
 }
 
 module.exports = keysIn;
diff --git a/lodash.js b/lodash.js
index 22e73749b..47e584660 100644
--- a/lodash.js
+++ b/lodash.js
@@ -12,7 +12,7 @@
   var undefined;
 
   /** Used as the semantic version number. */
-  var VERSION = '4.14.1';
+  var VERSION = '4.14.2';
 
   /** Used as the size to enable large array optimizations. */
   var LARGE_ARRAY_SIZE = 200;
@@ -134,7 +134,7 @@
 
   /**
    * Used to match `RegExp`
-   * [syntax characters](http://ecma-international.org/ecma-262/6.0/#sec-patterns).
+   * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).
    */
   var reRegExpChar = /[\\^$.*+?()[\]{}|]/g,
       reHasRegExpChar = RegExp(reRegExpChar.source);
@@ -157,7 +157,7 @@
 
   /**
    * Used to match
-   * [ES template delimiters](http://ecma-international.org/ecma-262/6.0/#sec-template-literal-lexical-components).
+   * [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components).
    */
   var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;
 
@@ -266,9 +266,9 @@
   var contextProps = [
     'Array', 'Buffer', 'DataView', 'Date', 'Error', 'Float32Array', 'Float64Array',
     'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Map', 'Math', 'Object',
-    'Promise', 'Reflect', 'RegExp', 'Set', 'String', 'Symbol', 'TypeError',
-    'Uint8Array', 'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap',
-    '_', 'clearTimeout', 'isFinite', 'parseInt', 'setTimeout'
+    'Promise', 'RegExp', 'Set', 'String', 'Symbol', 'TypeError', 'Uint8Array',
+    'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap', '_', 'clearTimeout',
+    'isFinite', 'parseInt', 'setTimeout'
   ];
 
   /** Used to make template sourceURLs easier to identify. */
@@ -1129,7 +1129,7 @@
   }
 
   /**
-   * Creates a function that invokes `func` with its first argument transformed.
+   * Creates a unary function that invokes `func` with its argument transformed.
    *
    * @private
    * @param {Function} func The function to wrap.
@@ -1282,7 +1282,6 @@
 
     /** Built-in constructor references. */
     var Array = context.Array,
-        Date = context.Date,
         Error = context.Error,
         Math = context.Math,
         RegExp = context.RegExp,
@@ -1316,7 +1315,7 @@
 
     /**
      * Used to resolve the
-     * [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+     * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
      * of values.
      */
     var objectToString = objectProto.toString;
@@ -1332,29 +1331,28 @@
 
     /** Built-in value references. */
     var Buffer = moduleExports ? context.Buffer : undefined,
-        Reflect = context.Reflect,
         Symbol = context.Symbol,
         Uint8Array = context.Uint8Array,
-        enumerate = Reflect ? Reflect.enumerate : undefined,
+        getPrototype = overArg(Object.getPrototypeOf, Object),
         iteratorSymbol = Symbol ? Symbol.iterator : undefined,
         objectCreate = context.Object.create,
         propertyIsEnumerable = objectProto.propertyIsEnumerable,
         splice = arrayProto.splice,
         spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined;
 
-    /** Built-in method references that are mockable. */
-    var clearTimeout = function(id) { return context.clearTimeout.call(root, id); },
-        setTimeout = function(func, wait) { return context.setTimeout.call(root, func, wait); };
+    /** Mocked built-ins. */
+    var ctxClearTimeout = context.clearTimeout !== root.clearTimeout && context.clearTimeout,
+        ctxNow = context.Date && context.Date.now !== root.Date.now && context.Date.now,
+        ctxSetTimeout = context.setTimeout !== root.setTimeout && context.setTimeout;
 
     /* Built-in method references for those with the same name as other `lodash` methods. */
     var nativeCeil = Math.ceil,
         nativeFloor = Math.floor,
-        nativeGetPrototype = Object.getPrototypeOf,
         nativeGetSymbols = Object.getOwnPropertySymbols,
         nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined,
         nativeIsFinite = context.isFinite,
         nativeJoin = arrayProto.join,
-        nativeKeys = Object.keys,
+        nativeKeys = overArg(Object.keys, Object),
         nativeMax = Math.max,
         nativeMin = Math.min,
         nativeParseInt = context.parseInt,
@@ -2201,6 +2199,31 @@
 
     /*------------------------------------------------------------------------*/
 
+    /**
+     * Creates an array of the enumerable property names of the array-like `value`.
+     *
+     * @private
+     * @param {*} value The value to query.
+     * @param {boolean} inherited Specify returning inherited property names.
+     * @returns {Array} Returns the array of property names.
+     */
+    function arrayLikeKeys(value, inherited) {
+      var result = (isArray(value) || isString(value) || isArguments(value))
+        ? baseTimes(value.length, String)
+        : [];
+
+      var length = result.length,
+          skipIndexes = !!length;
+
+      for (var key in value) {
+        if ((inherited || hasOwnProperty.call(value, key)) &&
+            !(skipIndexes && (key == 'length' || isIndex(key, length)))) {
+          result.push(key);
+        }
+      }
+      return result;
+    }
+
     /**
      * Used by `_.defaults` to customize its `_.assignIn` use.
      *
@@ -2237,7 +2260,7 @@
 
     /**
      * Assigns `value` to `key` of `object` if the existing value is not equivalent
-     * using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
+     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
      * for equality comparisons.
      *
      * @private
@@ -2445,14 +2468,13 @@
       if (object == null) {
         return !length;
       }
-      var index = length;
-      while (index--) {
-        var key = props[index],
+      object = Object(object);
+      while (length--) {
+        var key = props[length],
             predicate = source[key],
             value = object[key];
 
-        if ((value === undefined &&
-            !(key in Object(object))) || !predicate(value)) {
+        if ((value === undefined && !(key in object)) || !predicate(value)) {
           return false;
         }
       }
@@ -2479,7 +2501,7 @@
      * @param {Function} func The function to delay.
      * @param {number} wait The number of milliseconds to delay invocation.
      * @param {Array} args The arguments to provide to `func`.
-     * @returns {number} Returns the timer id.
+     * @returns {number|Object} Returns the timer id or timeout object.
      */
     function baseDelay(func, wait, args) {
       if (typeof func != 'function') {
@@ -2824,12 +2846,7 @@
      * @returns {boolean} Returns `true` if `key` exists, else `false`.
      */
     function baseHas(object, key) {
-      // Avoid a bug in IE 10-11 where objects with a [[Prototype]] of `null`,
-      // that are composed entirely of index properties, return `false` for
-      // `hasOwnProperty` checks of them.
-      return object != null &&
-        (hasOwnProperty.call(object, key) ||
-          (typeof object == 'object' && key in object && getPrototype(object) === null));
+      return object != null && hasOwnProperty.call(object, key);
     }
 
     /**
@@ -3203,40 +3220,47 @@
     }
 
     /**
-     * The base implementation of `_.keys` which doesn't skip the constructor
-     * property of prototypes or treat sparse arrays as dense.
+     * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.
      *
      * @private
      * @param {Object} object The object to query.
      * @returns {Array} Returns the array of property names.
      */
-    var baseKeys = overArg(nativeKeys, Object);
+    function baseKeys(object) {
+      if (!isPrototype(object)) {
+        return nativeKeys(object);
+      }
+      var result = [];
+      for (var key in Object(object)) {
+        if (hasOwnProperty.call(object, key) && key != 'constructor') {
+          result.push(key);
+        }
+      }
+      return result;
+    }
 
     /**
-     * The base implementation of `_.keysIn` which doesn't skip the constructor
-     * property of prototypes or treat sparse arrays as dense.
+     * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.
      *
      * @private
      * @param {Object} object The object to query.
      * @returns {Array} Returns the array of property names.
      */
     function baseKeysIn(object) {
-      object = object == null ? object : Object(object);
+      if (!isObject(object)) {
+        return nativeKeysIn(object);
+      }
+      var isProto = isPrototype(object),
+          result = [];
 
-      var result = [];
       for (var key in object) {
-        result.push(key);
+        if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {
+          result.push(key);
+        }
       }
       return result;
     }
 
-    // Fallback for IE < 9 with es6-shim.
-    if (enumerate && !propertyIsEnumerable.call({ 'valueOf': 1 }, 'valueOf')) {
-      baseKeysIn = function(object) {
-        return iteratorToArray(enumerate(object));
-      };
-    }
-
     /**
      * The base implementation of `_.lt` which doesn't coerce arguments.
      *
@@ -3321,7 +3345,7 @@
         return;
       }
       if (!(isArray(source) || isTypedArray(source))) {
-        var props = keysIn(source);
+        var props = baseKeysIn(source);
       }
       arrayEach(props || source, function(srcValue, key) {
         if (props) {
@@ -3688,6 +3712,9 @@
      * @returns {Object} Returns `object`.
      */
     function baseSet(object, path, value, customizer) {
+      if (!isObject(object)) {
+        return object;
+      }
       path = isKey(path, object) ? [path] : castPath(path);
 
       var index = -1,
@@ -3696,20 +3723,19 @@
           nested = object;
 
       while (nested != null && ++index < length) {
-        var key = toKey(path[index]);
-        if (isObject(nested)) {
-          var newValue = value;
-          if (index != lastIndex) {
-            var objValue = nested[key];
-            newValue = customizer ? customizer(objValue, key, nested) : undefined;
-            if (newValue === undefined) {
-              newValue = objValue == null
-                ? (isIndex(path[index + 1]) ? [] : {})
-                : objValue;
-            }
+        var key = toKey(path[index]),
+            newValue = value;
+
+        if (index != lastIndex) {
+          var objValue = nested[key];
+          newValue = customizer ? customizer(objValue, key, nested) : undefined;
+          if (newValue === undefined) {
+            newValue = isObject(objValue)
+              ? objValue
+              : (isIndex(path[index + 1]) ? [] : {});
           }
-          assignValue(nested, key, newValue);
         }
+        assignValue(nested, key, newValue);
         nested = nested[key];
       }
       return object;
@@ -4002,7 +4028,7 @@
       object = parent(object, path);
 
       var key = toKey(last(path));
-      return !(object != null && baseHas(object, key)) || delete object[key];
+      return !(object != null && hasOwnProperty.call(object, key)) || delete object[key];
     }
 
     /**
@@ -4157,6 +4183,16 @@
       return (!start && end >= length) ? array : baseSlice(array, start, end);
     }
 
+    /**
+     * A simple wrapper around the global [`clearTimeout`](https://mdn.io/clearTimeout).
+     *
+     * @private
+     * @param {number|Object} id The timer id or timeout object of the timer to clear.
+     */
+    var clearTimeout = ctxClearTimeout || function(id) {
+      return root.clearTimeout(id);
+    };
+
     /**
      * Creates a clone of  `buffer`.
      *
@@ -4650,7 +4686,7 @@
     function createCtor(Ctor) {
       return function() {
         // Use a `switch` statement to work with class constructors. See
-        // http://ecma-international.org/ecma-262/6.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist
+        // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist
         // for more details.
         var args = arguments;
         switch (args.length) {
@@ -5338,7 +5374,7 @@
         case regexpTag:
         case stringTag:
           // Coerce regexes to strings and treat strings, primitives and objects,
-          // as equal. See http://www.ecma-international.org/ecma-262/6.0/#sec-regexp.prototype.tostring
+          // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring
           // for more details.
           return object == (other + '');
 
@@ -5400,7 +5436,7 @@
       var index = objLength;
       while (index--) {
         var key = objProps[index];
-        if (!(isPartial ? key in other : baseHas(other, key))) {
+        if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) {
           return false;
         }
       }
@@ -5536,19 +5572,6 @@
       return arguments.length ? result(arguments[0], arguments[1]) : result;
     }
 
-    /**
-     * Gets the "length" property value of `object`.
-     *
-     * **Note:** This function is used to avoid a
-     * [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792) that affects
-     * Safari on at least iOS 8.1-8.3 ARM64.
-     *
-     * @private
-     * @param {Object} object The object to query.
-     * @returns {*} Returns the "length" value.
-     */
-    var getLength = baseProperty('length');
-
     /**
      * Gets the data for `map`.
      *
@@ -5597,15 +5620,6 @@
       return baseIsNative(value) ? value : undefined;
     }
 
-    /**
-     * Gets the `[[Prototype]]` of `value`.
-     *
-     * @private
-     * @param {*} value The value to query.
-     * @returns {null|Object} Returns the `[[Prototype]]`.
-     */
-    var getPrototype = overArg(nativeGetPrototype, Object);
-
     /**
      * Creates an array of the own enumerable symbol properties of `object`.
      *
@@ -5818,23 +5832,6 @@
       }
     }
 
-    /**
-     * Creates an array of index keys for `object` values of arrays,
-     * `arguments` objects, and strings, otherwise `null` is returned.
-     *
-     * @private
-     * @param {Object} object The object to query.
-     * @returns {Array|null} Returns index keys, else `null`.
-     */
-    function indexKeys(object) {
-      var length = object ? object.length : undefined;
-      if (isLength(length) &&
-          (isArray(object) || isString(object) || isArguments(object))) {
-        return baseTimes(length, String);
-      }
-      return null;
-    }
-
     /**
      * Inserts wrapper `details` in a comment at the top of the `source` body.
      *
@@ -6119,6 +6116,25 @@
       return objValue;
     }
 
+    /**
+     * This function is like
+     * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
+     * except that it includes inherited enumerable properties.
+     *
+     * @private
+     * @param {Object} object The object to query.
+     * @returns {Array} Returns the array of property names.
+     */
+    function nativeKeysIn(object) {
+      var result = [];
+      if (object != null) {
+        for (var key in Object(object)) {
+          result.push(key);
+        }
+      }
+      return result;
+    }
+
     /**
      * Gets the parent value at `path` of `object`.
      *
@@ -6187,6 +6203,18 @@
       };
     }());
 
+    /**
+     * A simple wrapper around the global [`setTimeout`](https://mdn.io/setTimeout).
+     *
+     * @private
+     * @param {Function} func The function to delay.
+     * @param {number} wait The number of milliseconds to delay invocation.
+     * @returns {number|Object} Returns the timer id or timeout object.
+     */
+    var setTimeout = ctxSetTimeout || function(func, wait) {
+      return root.setTimeout(func, wait);
+    };
+
     /**
      * Sets the `toString` method of `wrapper` to mimic the source of `reference`
      * with wrapper details in a comment at the top of the source body.
@@ -6407,7 +6435,7 @@
 
     /**
      * Creates an array of `array` values not included in the other given arrays
-     * using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
+     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
      * for equality comparisons. The order of result values is determined by the
      * order they occur in the first array.
      *
@@ -6910,7 +6938,7 @@
 
     /**
      * Gets the index at which the first occurrence of `value` is found in `array`
-     * using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
+     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
      * for equality comparisons. If `fromIndex` is negative, it's used as the
      * offset from the end of `array`.
      *
@@ -6958,12 +6986,13 @@
      * // => [1, 2]
      */
     function initial(array) {
-      return dropRight(array, 1);
+      var length = array ? array.length : 0;
+      return length ? baseSlice(array, 0, -1) : [];
     }
 
     /**
      * Creates an array of unique values that are included in all given arrays
-     * using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
+     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
      * for equality comparisons. The order of result values is determined by the
      * order they occur in the first array.
      *
@@ -7167,7 +7196,7 @@
 
     /**
      * Removes all given values from `array` using
-     * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
+     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
      * for equality comparisons.
      *
      * **Note:** Unlike `_.without`, this method mutates `array`. Use `_.remove`
@@ -7636,7 +7665,8 @@
      * // => [2, 3]
      */
     function tail(array) {
-      return drop(array, 1);
+      var length = array ? array.length : 0;
+      return length ? baseSlice(array, 1, length) : [];
     }
 
     /**
@@ -7793,7 +7823,7 @@
 
     /**
      * Creates an array of unique values, in order, from all given arrays using
-     * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
+     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
      * for equality comparisons.
      *
      * @static
@@ -7874,7 +7904,7 @@
 
     /**
      * Creates a duplicate-free version of an array, using
-     * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
+     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
      * for equality comparisons, in which only the first occurrence of each
      * element is kept.
      *
@@ -8019,7 +8049,7 @@
 
     /**
      * Creates an array excluding all given values using
-     * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
+     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
      * for equality comparisons.
      *
      * **Note:** Unlike `_.pull`, this method returns a new array.
@@ -8590,6 +8620,11 @@
      * Iteration is stopped once `predicate` returns falsey. The predicate is
      * invoked with three arguments: (value, index|key, collection).
      *
+     * **Note:** This method returns `true` for
+     * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because
+     * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of
+     * elements of empty collections.
+     *
      * @static
      * @memberOf _
      * @since 0.1.0
@@ -8907,7 +8942,7 @@
     /**
      * Checks if `value` is in `collection`. If `collection` is a string, it's
      * checked for a substring of `value`, otherwise
-     * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
+     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
      * is used for equality comparisons. If `fromIndex` is negative, it's used as
      * the offset from the end of `collection`.
      *
@@ -9375,7 +9410,7 @@
           return collection.size;
         }
       }
-      return keys(collection).length;
+      return baseKeys(collection).length;
     }
 
     /**
@@ -9487,9 +9522,9 @@
      * }, _.now());
      * // => Logs the number of milliseconds it took for the deferred invocation.
      */
-    function now() {
-      return Date.now();
-    }
+    var now = ctxNow || function() {
+      return root.Date.now();
+    };
 
     /*------------------------------------------------------------------------*/
 
@@ -10030,7 +10065,7 @@
      * **Note:** The cache is exposed as the `cache` property on the memoized
      * function. Its creation may be customized by replacing the `_.memoize.Cache`
      * constructor with one whose instances implement the
-     * [`Map`](http://ecma-international.org/ecma-262/6.0/#sec-properties-of-the-map-prototype-object)
+     * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object)
      * method interface of `delete`, `get`, `has`, and `set`.
      *
      * @static
@@ -10330,7 +10365,7 @@
     /**
      * Creates a function that invokes `func` with the `this` binding of the
      * create function and an array of arguments much like
-     * [`Function#apply`](http://www.ecma-international.org/ecma-262/6.0/#sec-function.prototype.apply).
+     * [`Function#apply`](http://www.ecma-international.org/ecma-262/7.0/#sec-function.prototype.apply).
      *
      * **Note:** This method is based on the
      * [spread operator](https://mdn.io/spread_operator).
@@ -10677,7 +10712,7 @@
 
     /**
      * Performs a
-     * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
+     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
      * comparison between two values to determine if they are equivalent.
      *
      * @static
@@ -10857,7 +10892,7 @@
      * // => false
      */
     function isArrayLike(value) {
-      return value != null && isLength(getLength(value)) && !isFunction(value);
+      return value != null && isLength(value.length) && !isFunction(value);
     }
 
     /**
@@ -10957,8 +10992,7 @@
      * @since 0.1.0
      * @category Lang
      * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a DOM element,
-     *  else `false`.
+     * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.
      * @example
      *
      * _.isElement(document.body);
@@ -11016,12 +11050,14 @@
           return !value.size;
         }
       }
+      var isProto = isPrototype(value);
       for (var key in value) {
-        if (hasOwnProperty.call(value, key)) {
+        if (hasOwnProperty.call(value, key) &&
+            !(isProto && key == 'constructor')) {
           return false;
         }
       }
-      return !(nonEnumShadows && keys(value).length);
+      return !(nonEnumShadows && nativeKeys(value).length);
     }
 
     /**
@@ -11040,8 +11076,7 @@
      * @category Lang
      * @param {*} value The value to compare.
      * @param {*} other The other value to compare.
-     * @returns {boolean} Returns `true` if the values are equivalent,
-     *  else `false`.
+     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
      * @example
      *
      * var object = { 'a': 1 };
@@ -11070,8 +11105,7 @@
      * @param {*} value The value to compare.
      * @param {*} other The other value to compare.
      * @param {Function} [customizer] The function to customize comparisons.
-     * @returns {boolean} Returns `true` if the values are equivalent,
-     *  else `false`.
+     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
      * @example
      *
      * function isGreeting(value) {
@@ -11105,8 +11139,7 @@
      * @since 3.0.0
      * @category Lang
      * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is an error object,
-     *  else `false`.
+     * @returns {boolean} Returns `true` if `value` is an error object, else `false`.
      * @example
      *
      * _.isError(new Error);
@@ -11134,8 +11167,7 @@
      * @since 0.1.0
      * @category Lang
      * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a finite number,
-     *  else `false`.
+     * @returns {boolean} Returns `true` if `value` is a finite number, else `false`.
      * @example
      *
      * _.isFinite(3);
@@ -11212,16 +11244,15 @@
     /**
      * Checks if `value` is a valid array-like length.
      *
-     * **Note:** This function is loosely based on
-     * [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
+     * **Note:** This method is loosely based on
+     * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
      *
      * @static
      * @memberOf _
      * @since 4.0.0
      * @category Lang
      * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a valid length,
-     *  else `false`.
+     * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
      * @example
      *
      * _.isLength(3);
@@ -11243,7 +11274,7 @@
 
     /**
      * Checks if `value` is the
-     * [language type](http://www.ecma-international.org/ecma-262/6.0/#sec-ecmascript-language-types)
+     * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
      * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
      *
      * @static
@@ -11322,8 +11353,12 @@
      * Performs a partial deep comparison between `object` and `source` to
      * determine if `object` contains equivalent property values.
      *
-     * **Note:** This method supports comparing the same values as `_.isEqual`
-     * and is equivalent to `_.matches` when `source` is partially applied.
+     * **Note:** This method is equivalent to `_.matches` when `source` is
+     * partially applied.
+     *
+     * Partial comparisons will match empty array and empty object `source`
+     * values against any array or object value, respectively. See `_.isEqual`
+     * for a list of supported value comparisons.
      *
      * @static
      * @memberOf _
@@ -11536,8 +11571,7 @@
      * @since 0.8.0
      * @category Lang
      * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a plain object,
-     *  else `false`.
+     * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
      * @example
      *
      * function Foo() {
@@ -11601,8 +11635,7 @@
      * @since 4.0.0
      * @category Lang
      * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a safe integer,
-     *  else `false`.
+     * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`.
      * @example
      *
      * _.isSafeInteger(3);
@@ -11896,7 +11929,7 @@
      * Converts `value` to an integer.
      *
      * **Note:** This method is loosely based on
-     * [`ToInteger`](http://www.ecma-international.org/ecma-262/6.0/#sec-tointeger).
+     * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger).
      *
      * @static
      * @memberOf _
@@ -11930,7 +11963,7 @@
      * array-like object.
      *
      * **Note:** This method is based on
-     * [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
+     * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
      *
      * @static
      * @memberOf _
@@ -12159,13 +12192,7 @@
      * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }
      */
     var assignIn = createAssigner(function(object, source) {
-      if (nonEnumShadows || isPrototype(source) || isArrayLike(source)) {
-        copyObject(source, keysIn(source), object);
-        return;
-      }
-      for (var key in source) {
-        assignValue(object, key, source[key]);
-      }
+      copyObject(source, keysIn(source), object);
     });
 
     /**
@@ -12774,7 +12801,7 @@
      * Creates an array of the own enumerable property names of `object`.
      *
      * **Note:** Non-object values are coerced to objects. See the
-     * [ES spec](http://ecma-international.org/ecma-262/6.0/#sec-object.keys)
+     * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
      * for more details.
      *
      * @static
@@ -12799,23 +12826,7 @@
      * // => ['0', '1']
      */
     function keys(object) {
-      var isProto = isPrototype(object);
-      if (!(isProto || isArrayLike(object))) {
-        return baseKeys(object);
-      }
-      var indexes = indexKeys(object),
-          skipIndexes = !!indexes,
-          result = indexes || [],
-          length = result.length;
-
-      for (var key in object) {
-        if (baseHas(object, key) &&
-            !(skipIndexes && (key == 'length' || isIndex(key, length))) &&
-            !(isProto && key == 'constructor')) {
-          result.push(key);
-        }
-      }
-      return result;
+      return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);
     }
 
     /**
@@ -12842,23 +12853,7 @@
      * // => ['a', 'b', 'c'] (iteration order is not guaranteed)
      */
     function keysIn(object) {
-      var index = -1,
-          isProto = isPrototype(object),
-          props = baseKeysIn(object),
-          propsLength = props.length,
-          indexes = indexKeys(object),
-          skipIndexes = !!indexes,
-          result = indexes || [],
-          length = result.length;
-
-      while (++index < propsLength) {
-        var key = props[index];
-        if (!(skipIndexes && (key == 'length' || isIndex(key, length))) &&
-            !(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {
-          result.push(key);
-        }
-      }
-      return result;
+      return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);
     }
 
     /**
@@ -15038,8 +15033,12 @@
      * object and `source`, returning `true` if the given object has equivalent
      * property values, else `false`.
      *
-     * **Note:** The created function supports comparing the same values as
-     * `_.isEqual` is equivalent to `_.isMatch` with `source` partially applied.
+     * **Note:** The created function is equivalent to `_.isMatch` with `source`
+     * partially applied.
+     *
+     * Partial comparisons will match empty array and empty object `source`
+     * values against any array or object value, respectively. See `_.isEqual`
+     * for a list of supported value comparisons.
      *
      * @static
      * @memberOf _
@@ -15066,7 +15065,9 @@
      * value at `path` of a given object to `srcValue`, returning `true` if the
      * object value is equivalent, else `false`.
      *
-     * **Note:** This method supports comparing the same values as `_.isEqual`.
+     * **Note:** Partial comparisons will match empty array and empty object
+     * `srcValue` values against any array or object value, respectively. See
+     * `_.isEqual` for a list of supported value comparisons.
      *
      * @static
      * @memberOf _
diff --git a/lodash.min.js b/lodash.min.js
index 5c282e70a..744569f44 100644
--- a/lodash.min.js
+++ b/lodash.min.js
@@ -5,126 +5,125 @@
 ;(function(){function t(t,n){return t.set(n[0],n[1]),t}function n(t,n){return t.add(n),t}function r(t,n,r){switch(r.length){case 0:return t.call(n);case 1:return t.call(n,r[0]);case 2:return t.call(n,r[0],r[1]);case 3:return t.call(n,r[0],r[1],r[2])}return t.apply(n,r)}function e(t,n,r,e){for(var u=-1,o=t?t.length:0;++u<o;){var i=t[u];n(e,i,r(i),t)}return e}function u(t,n){for(var r=-1,e=t?t.length:0;++r<e&&false!==n(t[r],r,t););return t}function o(t,n){for(var r=t?t.length:0;r--&&false!==n(t[r],r,t););
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+if(this.__filtered__){var t=new Ft(this);t.__dir__=-1,t.__filtered__=true}else t=this.clone(),t.__dir__*=-1;return t},Ft.prototype.value=function(){var t,n=this.__wrapped__.value(),r=this.__dir__,e=Fi(n),u=0>r,o=e?n.length:0;t=o;for(var i=this.__views__,f=0,c=-1,a=i.length;++c<a;){var l=i[c],s=l.size;switch(l.type){case"drop":f+=s;break;case"dropRight":t-=s;break;case"take":t=yo(t,f+s);break;case"takeRight":f=go(f,t-s)}}if(t={start:f,end:t},i=t.start,f=t.end,t=f-i,u=u?f:i-1,i=this.__iteratees__,f=i.length,
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+zt["[object Float32Array]"]=zt["[object Float64Array]"]=zt["[object Int8Array]"]=zt["[object Int16Array]"]=zt["[object Int32Array]"]=zt["[object Uint8Array]"]=zt["[object Uint8ClampedArray]"]=zt["[object Uint16Array]"]=zt["[object Uint32Array]"]=true,zt["[object Arguments]"]=zt["[object Array]"]=zt["[object ArrayBuffer]"]=zt["[object Boolean]"]=zt["[object DataView]"]=zt["[object Date]"]=zt["[object Error]"]=zt["[object Function]"]=zt["[object Map]"]=zt["[object Number]"]=zt["[object Object]"]=zt["[object RegExp]"]=zt["[object Set]"]=zt["[object String]"]=zt["[object WeakMap]"]=false;
+var Ut={};Ut["[object Arguments]"]=Ut["[object Array]"]=Ut["[object ArrayBuffer]"]=Ut["[object DataView]"]=Ut["[object Boolean]"]=Ut["[object Date]"]=Ut["[object Float32Array]"]=Ut["[object Float64Array]"]=Ut["[object Int8Array]"]=Ut["[object Int16Array]"]=Ut["[object Int32Array]"]=Ut["[object Map]"]=Ut["[object Number]"]=Ut["[object Object]"]=Ut["[object RegExp]"]=Ut["[object Set]"]=Ut["[object String]"]=Ut["[object Symbol]"]=Ut["[object Uint8Array]"]=Ut["[object Uint8ClampedArray]"]=Ut["[object Uint16Array]"]=Ut["[object Uint32Array]"]=true,
+Ut["[object Error]"]=Ut["[object Function]"]=Ut["[object WeakMap]"]=false;var $t,Ft={"\\":"\\","'":"'","\n":"n","\r":"r","\u2028":"u2028","\u2029":"u2029"},Tt=parseFloat,Nt=parseInt,Pt=typeof global=="object"&&global&&global.Object===Object&&global,Zt=typeof self=="object"&&self&&self.Object===Object&&self,qt=Pt||Zt||Function("return this")(),Vt=typeof exports=="object"&&exports&&!exports.nodeType&&exports,Kt=Vt&&typeof module=="object"&&module&&!module.nodeType&&module,Gt=Kt&&Kt.exports===Vt,Jt=Gt&&Pt.g;
+t:{try{$t=Jt&&Jt.f("util");break t}catch(t){}$t=void 0}var Yt=$t&&$t.isArrayBuffer,Ht=$t&&$t.isDate,Qt=$t&&$t.isMap,Xt=$t&&$t.isRegExp,tn=$t&&$t.isSet,nn=$t&&$t.isTypedArray,rn=m({"\xc0":"A","\xc1":"A","\xc2":"A","\xc3":"A","\xc4":"A","\xc5":"A","\xe0":"a","\xe1":"a","\xe2":"a","\xe3":"a","\xe4":"a","\xe5":"a","\xc7":"C","\xe7":"c","\xd0":"D","\xf0":"d","\xc8":"E","\xc9":"E","\xca":"E","\xcb":"E","\xe8":"e","\xe9":"e","\xea":"e","\xeb":"e","\xcc":"I","\xcd":"I","\xce":"I","\xcf":"I","\xec":"i","\xed":"i",
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+"&#96;":"`"}),on=T();typeof define=="function"&&typeof define.amd=="object"&&define.amd?(qt._=on, define(function(){return on})):Kt?((Kt.exports=on)._=on,Vt._=on):qt._=on}).call(this);
\ No newline at end of file
diff --git a/matches.js b/matches.js
index 834d4729b..d34e98e9b 100644
--- a/matches.js
+++ b/matches.js
@@ -6,8 +6,12 @@ var baseClone = require('./_baseClone'),
  * object and `source`, returning `true` if the given object has equivalent
  * property values, else `false`.
  *
- * **Note:** The created function supports comparing the same values as
- * `_.isEqual` is equivalent to `_.isMatch` with `source` partially applied.
+ * **Note:** The created function is equivalent to `_.isMatch` with `source`
+ * partially applied.
+ *
+ * Partial comparisons will match empty array and empty object `source`
+ * values against any array or object value, respectively. See `_.isEqual`
+ * for a list of supported value comparisons.
  *
  * @static
  * @memberOf _
diff --git a/matchesProperty.js b/matchesProperty.js
index 4496442cb..ff8f2dffc 100644
--- a/matchesProperty.js
+++ b/matchesProperty.js
@@ -6,7 +6,9 @@ var baseClone = require('./_baseClone'),
  * value at `path` of a given object to `srcValue`, returning `true` if the
  * object value is equivalent, else `false`.
  *
- * **Note:** This method supports comparing the same values as `_.isEqual`.
+ * **Note:** Partial comparisons will match empty array and empty object
+ * `srcValue` values against any array or object value, respectively. See
+ * `_.isEqual` for a list of supported value comparisons.
  *
  * @static
  * @memberOf _
diff --git a/memoize.js b/memoize.js
index 54e461400..97aa18285 100644
--- a/memoize.js
+++ b/memoize.js
@@ -13,7 +13,7 @@ var FUNC_ERROR_TEXT = 'Expected a function';
  * **Note:** The cache is exposed as the `cache` property on the memoized
  * function. Its creation may be customized by replacing the `_.memoize.Cache`
  * constructor with one whose instances implement the
- * [`Map`](http://ecma-international.org/ecma-262/6.0/#sec-properties-of-the-map-prototype-object)
+ * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object)
  * method interface of `delete`, `get`, `has`, and `set`.
  *
  * @static
diff --git a/now.js b/now.js
index 5ad305033..44a05623f 100644
--- a/now.js
+++ b/now.js
@@ -1,3 +1,5 @@
+var root = require('./_root');
+
 /**
  * Gets the timestamp of the number of milliseconds that have elapsed since
  * the Unix epoch (1 January 1970 00:00:00 UTC).
@@ -14,8 +16,8 @@
  * }, _.now());
  * // => Logs the number of milliseconds it took for the deferred invocation.
  */
-function now() {
-  return Date.now();
-}
+var now = function() {
+  return root.Date.now();
+};
 
 module.exports = now;
diff --git a/package.json b/package.json
index affd3022c..99f876c11 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "lodash",
-  "version": "4.14.1",
+  "version": "4.14.2",
   "description": "Lodash modular utilities.",
   "keywords": "modules, stdlib, util",
   "homepage": "https://lodash.com/",
diff --git a/pull.js b/pull.js
index c136c06e8..a2efcb5e1 100644
--- a/pull.js
+++ b/pull.js
@@ -3,7 +3,7 @@ var baseRest = require('./_baseRest'),
 
 /**
  * Removes all given values from `array` using
- * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
+ * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
  * for equality comparisons.
  *
  * **Note:** Unlike `_.without`, this method mutates `array`. Use `_.remove`
diff --git a/size.js b/size.js
index 2e414ab47..cb63f5e96 100644
--- a/size.js
+++ b/size.js
@@ -1,8 +1,8 @@
-var getTag = require('./_getTag'),
+var baseKeys = require('./_baseKeys'),
+    getTag = require('./_getTag'),
     isArrayLike = require('./isArrayLike'),
     isObjectLike = require('./isObjectLike'),
     isString = require('./isString'),
-    keys = require('./keys'),
     stringSize = require('./_stringSize');
 
 /** `Object#toString` result references. */
@@ -44,7 +44,7 @@ function size(collection) {
       return collection.size;
     }
   }
-  return keys(collection).length;
+  return baseKeys(collection).length;
 }
 
 module.exports = size;
diff --git a/spread.js b/spread.js
index c537dfa9b..9b70db6cc 100644
--- a/spread.js
+++ b/spread.js
@@ -13,7 +13,7 @@ var nativeMax = Math.max;
 /**
  * Creates a function that invokes `func` with the `this` binding of the
  * create function and an array of arguments much like
- * [`Function#apply`](http://www.ecma-international.org/ecma-262/6.0/#sec-function.prototype.apply).
+ * [`Function#apply`](http://www.ecma-international.org/ecma-262/7.0/#sec-function.prototype.apply).
  *
  * **Note:** This method is based on the
  * [spread operator](https://mdn.io/spread_operator).
diff --git a/tail.js b/tail.js
index 459a8a379..9964be528 100644
--- a/tail.js
+++ b/tail.js
@@ -1,4 +1,4 @@
-var drop = require('./drop');
+var baseSlice = require('./_baseSlice');
 
 /**
  * Gets all but the first element of `array`.
@@ -15,7 +15,8 @@ var drop = require('./drop');
  * // => [2, 3]
  */
 function tail(array) {
-  return drop(array, 1);
+  var length = array ? array.length : 0;
+  return length ? baseSlice(array, 1, length) : [];
 }
 
 module.exports = tail;
diff --git a/template.js b/template.js
index 03d20e591..c1a523c57 100644
--- a/template.js
+++ b/template.js
@@ -17,7 +17,7 @@ var reEmptyStringLeading = /\b__p \+= '';/g,
 
 /**
  * Used to match
- * [ES template delimiters](http://ecma-international.org/ecma-262/6.0/#sec-template-literal-lexical-components).
+ * [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components).
  */
 var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;
 
diff --git a/toInteger.js b/toInteger.js
index 49fd28dc7..c6aadf8f9 100644
--- a/toInteger.js
+++ b/toInteger.js
@@ -4,7 +4,7 @@ var toFinite = require('./toFinite');
  * Converts `value` to an integer.
  *
  * **Note:** This method is loosely based on
- * [`ToInteger`](http://www.ecma-international.org/ecma-262/6.0/#sec-tointeger).
+ * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger).
  *
  * @static
  * @memberOf _
diff --git a/toLength.js b/toLength.js
index 9aac9f6d5..be8f2a744 100644
--- a/toLength.js
+++ b/toLength.js
@@ -9,7 +9,7 @@ var MAX_ARRAY_LENGTH = 4294967295;
  * array-like object.
  *
  * **Note:** This method is based on
- * [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
+ * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
  *
  * @static
  * @memberOf _
diff --git a/union.js b/union.js
index d448d8be2..e676dfe49 100644
--- a/union.js
+++ b/union.js
@@ -5,7 +5,7 @@ var baseFlatten = require('./_baseFlatten'),
 
 /**
  * Creates an array of unique values, in order, from all given arrays using
- * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
+ * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
  * for equality comparisons.
  *
  * @static
diff --git a/uniq.js b/uniq.js
index 0e99ee932..52e5d512a 100644
--- a/uniq.js
+++ b/uniq.js
@@ -2,7 +2,7 @@ var baseUniq = require('./_baseUniq');
 
 /**
  * Creates a duplicate-free version of an array, using
- * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
+ * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
  * for equality comparisons, in which only the first occurrence of each
  * element is kept.
  *
diff --git a/without.js b/without.js
index 13cc11fc0..3a28e8ae4 100644
--- a/without.js
+++ b/without.js
@@ -4,7 +4,7 @@ var baseDifference = require('./_baseDifference'),
 
 /**
  * Creates an array excluding all given values using
- * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
+ * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
  * for equality comparisons.
  *
  * **Note:** Unlike `_.pull`, this method returns a new array.